Cut board face that lifts fine -tuning greatly

Cut board face that lifts fine -tuning greatly belongs to mesa fine -tuning technical field, especially relates to a cut board face that lifts fine -tuning greatly. The utility model provides a solve the cut board face that lifts fine -tuning greatly that the mesa levelness is not enough. The utility model discloses a front side support arm and rear side support arm, link to each other through the back support arm shaft between the rear side support arm upper end, back support arm shaft both ends are provided with the slider, the slider is arranged in between guide rail and the guide rail splint, the guide rail splint are fixed with rear portion mesa carriage lateral wall, be provided with fixing bolt hole and holding screw screw hole in its structural feature on the guide rail, set screw has been worn in the fixing bolt hole, the threaded hole that the last end rotation of set screw closed in the upper cover of rear portion mesa lower extreme, holding screw threaded hole has holding screw soon. 大剪举升机台面微调机构属于